Means for cooling internal-combustion engines.



I B. F. 1-1. OKRASSA. v TMEANS FOR COOLING INTERNAL COMBUSTION ENGINES.

Patented Sept. 12, 1911'.

APPLICATION FILED MAY 13,1910.

u lllll WITNESSES:

UNITED s'rn'rns PATENT OFFICE.

ROBERTO FRITZ EMIL OKRASSA, 0F ANTIG'E TA, GUATEMALA.

To all whom it may concern:

Be it known that I, Ronnnro FRITZ- Earn.-

OKRASSA, a subject ofthe German Emperor and King of Prussia, and a resident of Antigua, Guatemala, Central America, have invented a new and Improved Means for Cooling I'riternaLCombustion Engines, of which the following is a full, clear, and exact description.

The object ofthe invention is to provide anew and improved means for cooling internal combustion engines, in a very simple and economical manner, and for this purpose use is made of moistened air moved in contact with the cylinder of the engine.

A practical einbodinleiltiof the invention ,is represented in the accompanying draw- 'ing forming a partof this specification, in which the figure is a sectional side elevation of'means employed for cooling the engine cylinder by moistened air.

The cylinder A, of an internal combustion engine of any'approved construction,

' isfsurrounded by a mantle B provided with an inlet Ct connected with the discharge end of-a blower D, adapted to be driven from the'shaftef the engine by a suitable connection'E, such as a belt and pulleys or the like; Into the air inlet of the blower D extends apipe F, having a valve F, and connectedwith a tank Gr containing water, so that watery-"in small quantities, that is, drop by drop, can be fed into the air inlet of the blower D, to mix with the air and thus moitsten the same, the moistened air being dis 'harged by the blower D into the mantle B and circulatedthrough the space between the exterior surface of the cylinder A and the mantle B. The moistened air, in com 'ing in contact with the surface of the cyl-. inder A.readily cools the same, as the moistened air can take up a large quantity of heat radiating from the cylinder A, thus quickly cooling the same. The amount of,

water flowing from the water tank G to the air inlet of the blower D can be regulated to a nicety, by the operator adjusting the valve F correspondingly. The mantle B is provided with an outlet C, preferably located diametrically opposite the inlet C, so that the heated air readily escapes from the mantle B after having cooled the cylinder. A 'in its passage over the exterior surface thereof.

In order to prevent freezing of the water the tank G, the latter is contained in a MEANS FOR COOLING INTERNAL-COMBUSTION ENGINES.

Specification of Letters Patent. Patented Sept, 12 191.1. Application filed May 13,

1910. Serial No. 561,115.

the air is drawn into the blower D and forced out of the same into the inlet C and the mantle B. A valve I in the pipe I serves to regulate the amount of heated air passing from the mantle B to the casing H.

As shown in Fig. 1 the cylinder A is provided with the usual external ribs, but I do not liimtqyself to any particular construction of cylinder, as the same may be varied without deviating from my inventlon. I

"Having thus described my invention, I

claim as new" and desire to secure by Let ters Patent:

1. In combination, a cylinder of an internal combustion engine, a reservoir for containing water, a blower for receiving water in minute quantities from the said reservoir to form moistened air, a mantle around the' cylinder and connected with the discharge end of the said blower, so that moistened air is forced through the space between the cylinder wall and the mantle and a casing inclosing the said reservoir and communicating with the mantle and with the said blower.

2. In combination, a cylinder of an internal combustion engine, a reservoir for containing water, a blower for receiving .water in minute quantities from the said reservoir to form moistened air, a mantle around the cylinder and connected with the discharge end of the said blower so that moistened air is forced through the space between the cylinder wall and the mantle, a casing inclosing the said water tank, a pipe connectin the said mantle with the said casing, and a pipe connecting the said casing with the said blower.

3. In combination, a cylinder of an internal combustion engine, a reservoir for containing water a blower. for receiving water in minute quantities from the sa1d reservoir to form moistened air a mantle around the cylinder and receiving the moistened air from the blower to cool the cylinder, a inclosing the reservoir and communicating. with the blower, means for establishing communication -4-bet-Ween the mantle and the said casing.

. 4. In combination, a cylinder of an in-.

nected with the dlscharge end of'the blower, a the said mantle having an outlet, a casing.

inclosing the said reservoir and communieating with the air inlet of the blOWGIyMld a valve-controlled pipe connecting the man tle with said casing. A 4 i In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

ROBERTO FRITZ EMIL OKRASSA. Witnesses: AUcUs'ro Samoan, F. Bonn. 

